a simple vista
PRÁCTICA DE PARTICIPAR EN LA PERCEPCIÓN VISUAL SIN LA AYUDA DE UN DISPOSITIVO ÓPTICO DE AUMENTO O RECOLECCIÓN DE LUZ, COMO UN TELESCOPIO O UN MICROSCOPIO. LA VISIÓN CORREGIDA A LA AGUDEZA NORMAL USANDO LENTES CORRECTIVOS SE CONSIDERA "DESNUDA"
Visible a simple vista; A simple vista; Ojo desnudo; Pengei
= by the naked eye, superficially, on first thought
Ex: A macroform is a generic term for any medium, transparent or opaque, bearing images large enough to be easily read by the naked eye. Ex: An index based on term cards appears superficially little different from an ordinary card index. Ex: On first thought, it might appear that an author would be the best person to write the abstract, since presumably he or she knows more about the paper than anybody else.